Light source control unit



FIG. 1 is a perspective view of the light source control unit as seenfrom the top, rear and left side wherein the broken line disclosure isfor environmental purposes only and does not form a part of the claimeddesign;

FIG. 2 is a right side view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a rear view thereof; and,

FIG. 6 is a front view thereof.

The ornamental design for a light source control unit, as shown.